Classify Angles

Front

What is an acute angle?

Back

An angle that is less than 90 degrees.

Front

What is an obtuse angle?

Back

An angle that is more than 90 degrees but less than 180 degrees.

Front

What is a reflex angle?

Back

An angle that is more than 180 degrees but less than 360 degrees.

Front

What is a right angle?

Back

An angle that is exactly 90 degrees.

Front

Identify the type of angle: 45 degrees.

Back

Acute.

Front

Identify the type of angle: 120 degrees.

Back

Obtuse.

Front

Identify the type of angle: 270 degrees.

Back

Reflex.

Front

Identify the type of angle: 90 degrees.

Back

Right Angle.

Front

What is the sum of angles in a triangle?

Back

180 degrees.

Front

What type of angle is formed by the hands of a clock at 3:00?

Back

Right Angle.